Class Array

include/Eigen/src/Core/Array.h:48–259

 */
template <typename Scalar_, int Rows_, int Cols_, int Options_, int MaxRows_, int MaxCols_>
class Array : public PlainObjectBase<Array<Scalar_, Rows_, Cols_, Options_, MaxRows_, MaxCols_>> {
 public:
  typedef PlainObjectBase<Array> Base;
  EIGEN_DENSE_PUBLIC_INTERFACE(Array)

  enum { Options = Options_ };
  typedef typename Base::PlainObject PlainObject;

 protected:
  template <typename Derived, typename OtherDerived, bool IsVector>
  friend struct internal::conservative_resize_like_impl;

  using Base::m_storage;

 public:
  using Base::base;
  using Base::coeff;
  using Base::coeffRef;

  /**
   * The usage of
   *   using Base::operator=;
   * fails on MSVC. Since the code below is working with GCC and MSVC, we skipped
   * the usage of 'using'. This should be done only for operator=.
   */
  template <typename OtherDerived>
  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE Array& operator=(const EigenBase<OtherDerived>& other) {
    return Base::operator=(other);
  }

  /** Set all the entries to \a value.
   * \sa DenseBase::setConstant(), DenseBase::fill()
   */
  /* This overload is needed because the usage of
   *   using Base::operator=;
   * fails on MSVC. Since the code below is working with GCC and MSVC, we skipped
   * the usage of 'using'. This should be done only for operator=.
   */
  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE Array& operator=(const Scalar& value) {
    Base::setConstant(value);
    return *this;
  }

  /** Copies the value of the expression \a other into \c *this with automatic resizing.
   *
   * *this might be resized to match the dimensions of \a other. If *this was a null matrix (not already initialized),
   * it will be initialized.
   *
   * Note that copying a row-vector into a vector (and conversely) is allowed.
   * The resizing, if any, is then done in the appropriate way so that row-vectors
   * remain row-vectors and vectors remain vectors.
   */
  template <typename OtherDerived>
  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE Array& operator=(const DenseBase<OtherDerived>& other) {
    return Base::_set(other);
  }

  /**